CA1149505A - Liquid level detector - Google Patents

Liquid level detector

Info

Publication number
CA1149505A
CA1149505A CA000351930A CA351930A CA1149505A CA 1149505 A CA1149505 A CA 1149505A CA 000351930 A CA000351930 A CA 000351930A CA 351930 A CA351930 A CA 351930A CA 1149505 A CA1149505 A CA 1149505A
Authority
CA
Canada
Prior art keywords
container
transducer
liquid
set forth
sonic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
CA000351930A
Other languages
English (en)
French (fr)
Inventor
Kenneth T. White
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chemetron Corp
Badger Fire Protection Inc
Original Assignee
Chemetron Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Chemetron Corp filed Critical Chemetron Corp
Application granted granted Critical
Publication of CA1149505A publication Critical patent/CA1149505A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
    • G01F23/28—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
    • G01F23/296—Acoustic waves
    • G01F23/2961—Acoustic waves for discrete levels
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
    • G01F23/28—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
    • G01F23/296—Acoustic waves
    • G01F23/2965—Measuring attenuation of transmitted waves

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Electromagnetism (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
  • Compounds Of Unknown Constitution (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)
CA000351930A 1979-05-14 1980-05-14 Liquid level detector Expired CA1149505A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/039,047 US4280126A (en) 1979-05-14 1979-05-14 Liquid level detector
US039,047 1979-05-14

Publications (1)

Publication Number Publication Date
CA1149505A true CA1149505A (en) 1983-07-05

Family

ID=21903372

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000351930A Expired CA1149505A (en) 1979-05-14 1980-05-14 Liquid level detector

Country Status (7)

Country Link
US (1) US4280126A (de)
AU (1) AU536331B2 (de)
CA (1) CA1149505A (de)
DE (1) DE3017465A1 (de)
GB (1) GB2050604B (de)
IT (1) IT1127050B (de)
NO (1) NO801430L (de)

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GB2126342A (en) * 1982-09-06 1984-03-21 Innovative Tech Ltd Liquid level detector
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US4679430A (en) * 1983-03-30 1987-07-14 United Kingdom Atomic Energy Authority Ultrasonic liquid interface detector
US5192933A (en) * 1990-06-14 1993-03-09 Rodriguez Al W Field-adjustable ultrasonic detector
JP3049106B2 (ja) * 1990-11-01 2000-06-05 花王株式会社 層状態の検出方法
US5485401A (en) * 1993-06-14 1996-01-16 Scully Signal Company Method and apparatus for testing overfill protection devices
GB9321942D0 (en) * 1993-10-25 1993-12-15 Canon Kk Ultrasonic liquid sensing method and apparatus
US5438868A (en) * 1993-11-01 1995-08-08 Zevex, Inc. Noninvasive ultrasonic liquid level indicator
US5588779A (en) * 1995-06-07 1996-12-31 Schlumberger Industries, Inc. Sight, vent, and drain assembly for an underground tank
US5789675A (en) * 1995-08-04 1998-08-04 Zevex, Inc. Disposable electromagnetic fluid level sensor
US6023970A (en) * 1995-08-04 2000-02-15 Blaine; David H. Disposable electromagnetic fluid sensor
US6192752B1 (en) 1995-08-04 2001-02-27 Zevex, Inc. Noninvasive electromagnetic fluid level sensor
DE19538678C2 (de) * 1995-10-17 1998-12-10 Endress Hauser Gmbh Co Anordnung zur Überwachung eines vorbestimmten Füllstands einer Flüssigkeit in einem Behälter
DE19538680C2 (de) * 1995-10-17 1998-10-08 Endress Hauser Gmbh Co Anordnung zur Überwachung eines vorbestimmten Füllstands einer Flüssigkeit in einem Behälter
US5824881A (en) * 1996-09-13 1998-10-20 Cobe Laboratories Gas/fluid detector for contained fluid systems
DE19641339A1 (de) * 1996-10-08 1998-04-09 Klaus Reinhold Dipl In Doehrer Meß- und Anzeigevorrichtung für einen Flüssigkeitsbehälter
DE19900832A1 (de) * 1999-01-12 2000-07-27 Sws Werkstoffpruefung Hartmut Füllstandsermittlung mit Ultraschall
DE10009019C1 (de) * 2000-02-25 2001-08-30 Hartmut Siegel Vorrichtung zur Inhaltsüberprüfung von Behältern
US6634234B1 (en) * 2001-02-10 2003-10-21 Vega Grieshaber Kg Adjustable measurement head and a level measurement device and method employing it
CA2516197C (en) * 2003-02-14 2013-01-22 Adept Science & Technologies, Llc Ultrasonic liquid level monitor
US7360417B2 (en) * 2005-01-10 2008-04-22 Gems Sensors, Inc. Fluid level detector
US7607347B2 (en) 2006-03-07 2009-10-27 Gems Sensors, Inc. Fluid level detector
GB0714060D0 (en) * 2007-07-20 2007-08-29 Airbus Uk Ltd Ultrasonic fluid measurement method
EP2183564B1 (de) 2007-08-24 2019-01-02 Moog Inc. Luft- und flüssigkeitsultraschalldetektor
JP2011505919A (ja) * 2007-12-07 2011-03-03 ゼヴェクス・インコーポレーテッド セラミック素子の分割電極を使用するランジュバン型振動子に横運動を誘発する方法
US20110120218A1 (en) * 2009-11-24 2011-05-26 Halliburton Energy Services, Inc. Hand-Held Detection Device for Determining the Height of a Material in a Container and Methods of Use
GB2496426B (en) * 2011-11-11 2013-12-25 Messier Dowty Ltd Gauge
US9395228B2 (en) * 2013-02-15 2016-07-19 Truma Geraetetechnik Gmbh & Co. Kg Device and method for measuring the level of a liquid within a container
DE102013210151A1 (de) * 2013-05-31 2014-12-04 Robert Bosch Gmbh Verfahren und Vorrichtung zur Erhöhung der Sicherheit beim Gebrauch von Batteriesystemen und Berstscheiben
DE112015004614T5 (de) * 2014-10-08 2017-06-22 Semiconductor Components Industries, Llc Pegelsensor und Verfahren
CN105435337B (zh) * 2016-01-04 2016-10-26 京东方科技集团股份有限公司 一种液体参数检测方法及系统
US10788352B1 (en) 2018-04-30 2020-09-29 BearClaw Technologies, LLC Wi/Fi tank monitor
US11067424B2 (en) * 2018-05-07 2021-07-20 Scott Sullivan Portable liquid level gauge for buckets
US11976955B2 (en) 2018-09-21 2024-05-07 Ecolab Usa Inc. Portable fluid level monitoring device and method
EP4148398A1 (de) * 2018-11-30 2023-03-15 Carrier Corporation Gedruckter kapazitiver flüssigkeitspegelsensor zur brandunterdrückung
WO2020243628A1 (en) 2019-05-31 2020-12-03 Perceptive Sensor Technologies Llc Non-linear ultrasound method and apparatus for quantitative detection of materials (liquids, gas, plasma)
US11231311B2 (en) 2019-05-31 2022-01-25 Perceptive Sensor Technologies Llc Non-linear ultrasound method and apparatus for quantitative detection of materials
DE102019216039B3 (de) * 2019-10-17 2021-02-04 Vitesco Technologies Germany Gmbh Anordnung und Verfahren zum Feststellen eines Mindestfüllstands eines Fluids in einem Fluidbehälter
WO2022120074A1 (en) 2020-12-02 2022-06-09 Perceptive Sensor Technologies Llc Variable angle transducer interface block
US11549839B2 (en) 2020-12-04 2023-01-10 Perceptive Sensor Technologies, Inc. Systems and methods for determining floating roof level tilt and characterizing runoff
CA3201100A1 (en) 2020-12-04 2022-06-09 Lazar Bivolarsky Multi-bounce acoustic signal material detection
US11788904B2 (en) 2020-12-04 2023-10-17 Perceptive Sensor Technologies, Inc. Acoustic temperature measurement in layered environments
US11604294B2 (en) 2020-12-04 2023-03-14 Perceptive Sensor Technologies, Inc. Determining layer characteristics in multi-layered environments
WO2022120265A1 (en) 2020-12-04 2022-06-09 Perceptive Sensor Technologies, Inc. In-wall multi-bounce material property detection and acoustic signal amplification
US11525809B2 (en) 2020-12-04 2022-12-13 Perceptive Sensor Technologies, Inc. Apparatus, system, and method for the detection of objects and activity within a container
CN116917729A (zh) 2020-12-04 2023-10-20 感知传感器技术股份有限公司 多路径声学信号在材料检测方面的改进
EP4256296A1 (de) 2020-12-04 2023-10-11 Perceptive Sensor Technologies, Inc. Akustische temperaturmessung in geschichteten umgebungen
WO2022147234A1 (en) 2020-12-30 2022-07-07 Perceptive Sensor Technologies, Inc. Evaluation of fluid quality with signals
WO2023154514A1 (en) 2022-02-11 2023-08-17 Perceptive Sensor Technologies, Inc. Acoustic signal detection of material composition in static and dynamic conditions
US11940420B2 (en) 2022-07-19 2024-03-26 Perceptive Sensor Technologies, Inc. Acoustic signal material identification with nanotube couplant

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA720970A (en) * 1965-11-02 A. Worswick Bernard Apparatus for indicating the level of a body of liquid
US2990543A (en) * 1956-05-18 1961-06-27 Acoustica Associates Inc Sensing the presence or absence of material
US2932818A (en) * 1957-03-19 1960-04-12 W L Maxson Corp Acoustic material sensing apparatus
US3019650A (en) * 1957-04-01 1962-02-06 Bailey Meters Controls Ltd Apparatus for detecting the presence or absence at a location of a body of liquid
US3017771A (en) * 1958-07-28 1962-01-23 Bonhomme Francois Robert Liquid level indicators
US3079596A (en) * 1960-03-17 1963-02-26 Duane E Atkinson Acoustic level sensing system
US3213438A (en) * 1962-01-11 1965-10-19 Gen Motors Corp Feedback controlled sonic liquid detector
BE659053A (de) * 1964-01-30
DE1673972B2 (de) * 1968-03-16 1973-05-24 Lehmann, Walter, 1000 Berlin Vorrichtung zur anzeige des fuellstandes von lagergut in behaeltern
US3553636A (en) * 1969-01-27 1971-01-05 Bindicator Co Noncontact ultrasonic interface viscosity and percent solid detecting device
US3603149A (en) * 1969-09-03 1971-09-07 Us Army Ultrasonic liquid level indicator
US3656134A (en) * 1970-07-27 1972-04-11 Union Tank Car Co Liquid level detector
US3719939A (en) * 1971-02-09 1973-03-06 Westinghouse Electric Corp Differential pressure transducer
GB1406146A (en) * 1973-05-21 1975-09-17 Mullard Ltd Level sensor
US4123753A (en) * 1976-09-29 1978-10-31 Marine Moisture Control Company, Inc. Ullage measuring device

Also Published As

Publication number Publication date
NO801430L (no) 1980-11-17
IT8048682A0 (it) 1980-05-14
IT1127050B (it) 1986-05-21
GB2050604A (en) 1981-01-07
AU536331B2 (en) 1984-05-03
GB2050604B (en) 1984-04-04
DE3017465A1 (de) 1980-11-27
US4280126A (en) 1981-07-21
AU5805480A (en) 1980-11-20

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